The Ubisoft Forums have patch notes for a new version 1.05 update that's now live fro Anno 2070. At this point the patch is available through the in-game automatic updater (thanks Gamer's Hell). The patch notes are very long, but they begin with a list of highlights:

The logic for random map generation has been modified to allow for more variety in maps. WARNING: Five digit map numbers from before 1.05 will generate different maps than before

The full screen menu of statistic buildings has been optimized

The Continues chapters game settings now have an additional option ‘rare’ for ‘Quests’

Ready-to-build warehouses and depots on the mouse cursor now automatically change to deep sea warehouses and underwater warehouses when you move the mouse cursor to the open sea or underwater. The right-click menu and the construction menu have been changed accordingly